Nonlinear Quasiparticle Tunneling between Fractional Quantum Hall Edges
No Thumbnail Available
Meeting name
Sponsors
Date
Journal Title
Format
Article
Subject
Abstract
Remarkable nonlinearities in the differential tunneling conductance between fractional quantum Hall edge states at a constriction are observed in the weak- backscattering regime. In the ν=1/3 state a peak develops as temperature is increased and its width is determined by the fractional charge. In the range 2/3≤ν≤1/3 this width displays a symmetric behavior around ν=1/2. We discuss the consistency of these results with available theoretical predictions for interedge quasiparticle tunneling in the weak-backscattering regime.